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Discussion on NJ3151

NJ3151 : Gas Installation Gas pipelines are prone to liquids separating out of the 'wet' natural gas, and collecting over time in pipeline low points, causing reduced throughput. To clear these liquids a short articulated piston-like cylinder (the pig) is introduced via a valved by-pass line, and then pumped through the pipeline to displace any liquids it encounters into 'traps' further down the line. An advance on this technology is to introduce electronic measuring devices into the pig to monitor corrosion and to spot any possible small leaks in the pipeline - the pig is then referred to as an 'intelligent pig'. Every business has its jargon!